Terminal device, base station device, communication method, and integrated circuit

A communication method of a terminal device communicating with a network, the communication method comprising the steps of:

• receiving a system information block from the network;
• and
• transmitting a physical sidelink discovery channel associated with discovery using a link between the terminal device and a different terminal device,
• the discovery being defined as a process that identifies the terminal device and the different terminal device being in proximity to each other,
• transmit power for the transmission of the physical sidelink discovery channel being given with reference to at least a maximum output power,
• the maximum output power being given with reference to one parameter corresponding to an authorized range class among a plurality of parameters included in the system information block.

A communication method of a network communicating with a terminal device, the communication method comprising the step oftransmitting a system information block to the terminal device,

• the terminal device transmitting a physical sidelink discovery channel associated with discovery using a link between the terminal device and a different terminal device,
• the discovery being defined as a process that identifies the terminal device and the different terminal device being in proximity to each other,
• transmit power for the transmission of the physical sidelink discovery channel being given with reference to at least a maximum output power,
• the maximum output power being given with reference to one parameter corresponding to an authorized range class among a plurality of parameters included in the system information block.

An integrated circuit mounted on a terminal device communicating with a network, the integrated circuit causing the terminal device to exert:

• a function of receiving a system information block from the network;
• and
• a function of transmitting a physical sidelink discovery channel associated with discovery using a link between the terminal device and a different terminal device,
• the discovery being defined as a process that identifies the terminal device and the different terminal device being in proximity to each other,
• transmit power for the transmission of the physical sidelink discovery channel being given with reference to at least a maximum output power,
• the maximum output power being given with reference to one parameter corresponding to an authorized range class among a plurality of parameters included in the system information block.